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Kay [80]
3 years ago
7

a propane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas

remains constant
Chemistry
2 answers:
earnstyle [38]3 years ago
5 0

Answer:

The pressure remains constant

Explanation:

this is an example in charles law where as the temperature increases so does the volume.

Tanzania [10]3 years ago
5 0

Answer:

The correct answer is "Pressure".

Explanation:

As the propane torch is ignited inside the hot air balloon, the volume of the gas increases and the temperature of the gas also increases. This causes the density of the gas to decrease, keeping the pressure constant throughout the balloon, regardless of the small amount of gas lost through the balloon hole.

Have a nice day!

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Write some sentences about Respiration in your own words
weeeeeb [17]

Answer:

Reluctantly she pulled away, her pulse and respiration in a race.

Its function is less that of respiration than of FIG

Terrestrial plants have a gaseous interchange of oxygen and carbon dioxide which is necessary for respiration and feeding.

The least wind raises clouds of fine dust, which fill the air, render it so opaque as to obscure the noonday sun, and make respiration difficult.

6 0
2 years ago
A gas at 1.2 atm has a
Papessa [141]

Answer:

1.26 mole

Explanation:

Using ideal gas law

PV=nRT

R= 0.08206

T=273+87=360

1.2×31=n×0.08206×360

37.2 =n × 29.54

n= 1.26 mole

8 0
3 years ago
45) George is making spaghetti for dinner. He places 4.01 kg of water in a pan and brings it to a boil.
lesya692 [45]
On adding salt.....The boiling temperature increases.....

So ∆t= KB * molality
=O.52*(58/58)/4
= O.52*1/4
= 0.13
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5 0
3 years ago
There are three factors in which natural selection occurs. Select one statement from the list below that is a true statement abo
azamat

Answer: There is no list in your question. But the three factors in which natural selection occurs are:

1. A struggle for existence,

2. Variation and

3. Inheritance

Explanation:

Darwin’s theory of natural selection is the way in which organisms change overtime.

These changes allow organisms to become better adapted to their environment and increase their chances for survival.

The three major factors through which natural selection occurs are:

1. A struggle for existence,

2. Variation and

3. Inheritance

Darwin’s theory of natural selection will occur if the three conditions above are met and unless these factors are in place, natural selection will not occur.

8 0
3 years ago
What is the definition of enriched uranium
zimovet [89]

Answer:

Enriched uranium-

Explanation:

Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written ²³⁵U) has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium-238 (²³⁸U with 99.2739–99.2752% natural abundance), uranium-235 (²³⁵U, 0.7198–0.7202%), and uranium-234 (²³⁴U, 0.0050–0.0059%). U is the only nuclide existing in nature (in any appreciable amount) that is fissile with thermal neutrons.

8 0
3 years ago
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